Glass-shaping mold.



K. E. PEILER.

GLASS SHAPING MOLD.

APPLICATION FILED MAR. 17. 1914.

Patented Mar.12,1918.

[72067225021 fizrZ Zi'PezZar KARL E. PEILER, OF HARTFORD, CONNECTICUT,ASSIGNOR TO HARTFORD-FAIRMONT COMPANY, OF CANAJ'OHARIE, NEW YORK, ACORPORATION OF NEW YORK.

GLASS-SHAPING MOLD.

Specification of Letters Patent.

Patented Mar. 12,1918.

Application filed March 17, 1914. Serial No. 825,237.

To all whom z't-may concern: I

Be it known that I, KARL E. PEILER, a citizen of the United States,residing at Hartford, in the county of Hartford and State ofConnecticut, have invented new and useful Improvements in Glass- ShapingMolds, of which the following is a specification.

This invention is an improved construction of molds of the typesemployed for the shaping of molten glr "s in the manufacture ofglassware.

Glass molds are ordinarily made with their interior shaping wallsintegral with the body and base portion of the mold. These integralmolds are necessarily quite thick and heavy, for stability, and for themaintenance of proper heat conditions, and are relatively expensive tomanufacture, due largely to their weight and bulk, which must be mountedin a lathe or other suitable machine, for turnin or otherwise machiningtheir finished sur aces. Moreover, when in use, the shaping surfaces ofthe molds rapidly become oxidized, forming a scale, which requiresfrequent cleaning 01f, for which purpose the entire mold must be takenout of use and transferred to a lathe or other machine for the purposeof cleaning off the scale. This frequent cleaning of the mold rapidlyenlarges and otherwise changes its interior size and contour, So thatthese molds thus wear out very rapidly in use, and when discarded, theentire mold is useless'for that particular pattern of ware. For thesereasons it is necessary to keep on hand for each pattern of glassware aconsiderable number of molds, which, because of their bulk under thepresent practice, requires a large amount of storage room, andrepresents a onsiderable amount of capital locked up in thesemolds.Furhermore, as'each mold is put into use its entlre bulk must be warmedin to the required temperature, which involves more or lessdelay, andinterruption of the glass shapmg operations.

According to the present inventlon, the outer wall and base of the mold,which constitute by far its most bulky and weighty portions, and whichare subjectto, very little wear, are made in one piece, herein termedthe mold body; and the shaping portion, which receives all the wear andrequires frequent renewal, 1s made in a separate piece, which isremovably inserted as a lining in the main or body portion. Theselinings are relatively small and inexpensive to make. Therefore an amplestock of them sufiicient for holding these linings while in use, sincethey may be keptconstantly in use for the same pattern of glassware, orfor different patterns of the same general size, the mold linings forall of which may by this system be made interchangeable in the same moldbodies. The bases may remain in position in the presses or other shapingmachines. in which they are employed, and need no resetting or warmingin when the linings are changed, which requires only a few seconds. Whenthe shaping surfaces of the mold linings become too much enlarged oraltered by wear, they may be thrown away, with only moderate loss, ormay be made over, at little expense, for making slightly larger patternsof ware, while the mold bodies may be continued in use indefinitely.

Figure 1 of the drawings is an elevation in section taken on the line1-1 of Fig. 2, showing one of my improved molds completely assembled.Fig. 2 is an elevation projected from Fig. 1, showing the outside of themold body. Fig. 3 is a plan view projected from Fig. 2. Fig. 4 is anelevation of the mold lining of Fig. 1, shown separately from the moldbody, in section taken through its vertical center. Fig. 5 is a planview, projected from Fig. 4.

The mold body 3 may as to its external size and contour be like themolds now employed. Internally, it is bored out to fit the outer wall ofthe lining, being preferably made of a standard slze which will receivea large number of linings for the same pattern, or for differentpatterns of glassware of the same general diameter and length. The hereis preferably made substantially cylindrical, but may be made taperingif desired for any reason. Shoulders 11 at the bottom of the lining seatsupport the lining against downward pressure. The bottom of the moldbody is counterbored to receive a valve 4, which may be of any customaryform. As herein shown, the stem 5 of the valve projects through thebottom or base of the mold body, and a flange or shoulder 6 sets into aseat 7 countcrbored into:

the inside bottom of the mold. A convenient way, as shown in Fig. 1, toprevent the valve from dropping out when the mold is inverted to ejectthe ware, is to make the valve with an upwardly facing shoulder 8 which,after permitting a suitable lengthwise ejecting movement of the valve,stops against the bottom of the mold lining 13, the bot tom of thelining being apertured to allow the top 9 of the valve to projectthrough the lining and form the middle portion of the bottom of theshaping cavity. Vent apertures 10 may be made in the mold body asrequired.

In order to hold the mold linings securely in place, and to insure closeheat conducting contact and continuity between the mold lining 'and theouter body, the side walls of the body are made flexible andcontractible upon one side or upon opposite sides of the body. In theembodiment shown in the drawings the side walls are cut "through at 14,and are drawn together by means of a suitable number of screws or bolts15, passing through bosses 16. These bosses are preferably provided inpairs upon the opposite sides of the mold body, as shown in Fig. 3, soas to enable the body to be split and clamped on both sides if desired,and also to balance the weight of the mold symmetrically on all sides ofits longitudinal center, which is especially desirable in the case ofhand operated molds.

To increase the free clamping action of the sidewalls they arepreferably provided with a cross cut or kerf 17, which releases the sidewalls in a considerable degree from the base and insures more intimateclamping contact around the outer wall of the lining. To insure easyrelease and removal of the lining from the mold body, means arepreferably provided for expanding the sidewalls, when the clamping bolts15 are loosened. As herein illustrated, the side wall of the mold bodyis drilled and tapped at 12 to receive an ordinary tapering threadedpipe end or pipe plug between the split walls of the mold body. Byscrewing in the plug the walls are spread apart to the extent necessary.This allows of the ready removal of the lining even when it is of thesame exact diameter as its seat in the body, which is desirable in orderto insure proper clamping and intimate heat conducting relation betweenthe lining and the body.

This invention is adapted for use in hand operated or mechanically orautomatically operated glass presses Or other shaping machines. Thebottom surfaces 20 are preferably machined at right angles with theaxial or longitudinal center of the mold. The

circumferential surfaces 21 may be turned to standard diameter to fitinto suitable receiving seats in the presses or other machine,

with which they may be employed. If the molds are to be manipulated byhand they may be drilled and tapped at the bosses 22 to receive thecustomary handles and pivot pins, in line with the approximate center ofever, as well as other details of the invention, may be modifiedinvarious ways, according to the character of the ware, or to suit othervconditions.

I claim as my invention 1. The combination, in glass shaping molds, of aunitary mold body, a lining therefor, and means for contracting thewalls of the mold body to hold the lining in position, and for expandingthe walls to release the lining.

2. The combination, in glass shaping molds, of a mold lining, a moldbody having a flexible wall, and means for flexing the wall to clamp thelining in position.

3. The combination, in glass shaping molds, of a mold lining, a moldbody having a flexible wall, means for flexing the wall inwardly againstthe lining to clamp it in position, and means for flexing the walloutwardly to release the lining.

4. The combination, in glass shaping molds, of a unitary mold bodyhaving a substantially cylindrical interior seat for receiving a lining,and a removable relatively thin unitary lining having an exteriorcylindrical surface fitting the said seat in the mold body, and havingits interior surface shaped in the contour of a pattern of glassware.

5. The combination, in glass sha ing molds, of a unitarymold bodyprovided with a' substantially cylindrical seat extending full size toone end of the mold for receiving a lining from said end, a shoulder atthe other end of the cylindrical seat for supporting the lining againstend pressure, and means for contracting the side wall of the mold bodyto clamp the lining in place.

6. The combination, in glass shaping molds, of a unitary. mold bodyprovided with a substantially cylindrical seat for receiving a lining, ashoulder at the bottom of the cylindrical seat for supporting the linmgagamst end pressure, means for contracting the side wall of the moldbody against the lining to hold it in place, and means for expan ing thesaid side wall to release the lining.

I the lining.

8. The combination, in glass shaping molds, of a mold body provided witha substantially cylindrical seat for receiving a lining, and with a seatbelow the lining seat tor receiving a valve, a removable unitary liningseated in the mold body, and

having a valve opening in its bottom wall,

.- and a valve seated in the mold body and projecting through the valveopening in the bottom of the mold lining.

9. The combination, in glass shaping molds, of a mold body having asubstantially cylindrical seat for receiving a lining, and having ashoulder at the bottom of said seat for supporting the said lining, themold.

body being also provided, below the said lining seat, with a seat for avalve, and a mold lining seated in the meld body and having a valveorifice in its bottom wall, and a valve seated in said body andprojecting through the said orifice of the lining, the valve beingprovided with an upwardly facing shoulder engaging with the mold liningto limit the range of its Ware-ejecting movement. I

10,. The combination, in glass shaping molds, of a mold body having asubstantially cylindrical receiving seat, and a mold l lining and a neckring disposed in said seat.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses this 16th day of Mar b, 1914:.

KARL E. PEILER.

Witnesses:

H. A. Gnnasr, l'VILLIAM A. LORENZ.

